Mop



FIG. 1 is a front view showing an embodiment of my new design for a mop;

FIG. 2 is a back view showing my new design shown in FIG. 1;

FIG. 3 is a right side view showing my new design shown in FIG. 1;

FIG. 4 is a left side view showing my new design shown in FIG. 1;

FIG. 5 is a top view showing my new design shown in FIG. 1; and,

FIG. 6 is a bottom view showing my new design shown in FIG. 1.

The portions shown in broken lines are not part of the claimed design but show the environment in which the design is associated. 

I claim the ornamental design for a mop, as shown and described. 